That's actually a cool shot - good job! A coupling ring is definitely the way to go if you want to do this.
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Jordan H.Jul 16 '10 at 19:27

That's what I was thinking of - thanks. I guess I need a coupling ring that matches my inner camera diameter on one side, and that matches my lens outer diameter for the other?
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BossykenaJul 19 '10 at 15:39

1

Nope, because the mounting bayonet of a camera body is not the same as the threaded lens end of a typical lens. If you want to go body directly to a reverse lens, see Marc's answer. If you want to go body to regular lens to a reversed lens, then you want my answer.
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reuscamJul 19 '10 at 16:15

@Bossykena: Sure you would, but there's no macro that can do 1:7... That in itself is amazing enlargement. AMAZING is the word. And having AF along with it is just pure bliss. Boy I wish... But it is in did pricey.
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Robert KoritnikApr 17 '11 at 19:45